Capsule Closure Head With Two-Stage Latching for Precise Alignment
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Solution Overview
Problem
Existing beverage devices lack precision in capsule closure, leading to misalignment and increased stress on pivot points, which affects the reliability and efficiency of beverage extraction, especially in centrifugal brewing systems.
Innovation Solution
A two-stage closure system with a brewing interface head and capsule receiver, featuring a rotating lever system and bayonet-type latch, allows for precise alignment and higher closure forces without excessive stress on pivot points, enabling efficient centrifugal extraction with controlled tolerance and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-stage closure mechanism with a fixed pivot point is used, then the device structure is simple, but the closure precision deteriorates due to misalignment between upper and lower parts
Solution Approach 1:
The closure mechanism is divided into two independent stages: first the upper part closes onto the lower part, then the brewing interface member engages with the capsule receiver. This segmentation allows each stage to be optimized independently, with the brewing interface member providing precise alignment without compromising the overall structural simplicity of the pivot-based closure system.
2Volume of moving object
If the pivot point is positioned far from the closure area to enable capsule insertion, then the opening space is sufficient, but the closure precision deteriorates due to the long distance between pivot and closure area
Solution Approach 1:
The brewing interface member acts as an intermediary element between the upper part and the capsule receiver. It provides a localized precision engagement point that compensates for the misalignment caused by the distant pivot point, ensuring accurate closure without requiring the pivot to be repositioned closer to the closure area.
3Reliability
If a locking mechanism with a lock plate moving transversally is used, then the latching function is achieved, but the axial closure precision deteriorates since the lock plate moves along the transversal direction
Solution Approach 1:
The closure process is segmented into two phases: the initial closure phase that establishes axial alignment, and the subsequent latching phase that secures the position. The brewing interface member handles the precision alignment during closure, while the lock plate provides reliable latching afterward, allowing each function to be optimized without compromising the other.
4Device complexity
If a hinge mechanism is used for the closing flap, then the closure function is simple, but the closure stress concentrates on the hinge affecting reliability over time
Solution Approach 1:
The brewing interface member serves as a mediator that distributes and redirects closure stresses away from the hinge. By providing an additional engagement point and force distribution path, it reduces the stress concentration on the hinge mechanism, thereby improving durability while maintaining the simplicity of the hinge-based closure system.
Data Source
AI summary
Beverage device (1) comprising an upper sub-assembly (2) comprising a brewing interface head (4) and a lower sub-assembly (3) comprising a capsule receiver (5) for being engaged by the brewing interface head (4) between a capsule handling position and a closure head position, wherein the upper sub-assembly (2) is hinged on the lower sub-assembly (3) to be pivotally movable between said two positions and the brewing interface head (4) comprises a frame (7) and a brewing interface member (8); said interface member (8) being arranged to be movable relative to the frame (7) between a disengaging-to-capsule position and an engaging-to-capsule position, wherein it further comprises latch means (9), associated to the brewing interface head (4) and the capsule receiver (5), which are arranged for latching the brewing interface head (4) to the receiver (5) in the closure head position. The device can also be designed for centrifugal beverage extraction with an improved control of the alignment of the rotational parts of the brewing head with the capsule receiver.